Improvement in cultivator-teeth



M. JOHNSON. Cultivator-Tooth.

Patented Nov. 27, 1877.

IN VEN TOR WITNESSES Attorneys I UNITED STATES PATENT OFFICE.

MOSES JOHNSON, OF THREE RIVERS, MICHIGAN, ASSIGNOR TO THE UNIONMANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN CULTIVATOR-TEETH.

Specification forming part of Letters Patent N 0. 197,638, datedNovember 27, 1877; application filed October 26, 1877.

To all whom it may concern:

Be it known that I, MOSES JOHNSON, of Three Rivers, in the county of St.Joseph and State of Michigan, have invented a new and valuableImprovement in Cultivator Teeth; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawing is a representation of a plan view of mycultivator-tooth. Figs. 2 and 3 are end views of the same. Fig. 4 is adetail view, and Fig. 5 is a perspective view, of the same.

My invention relates to the manufacture of cultivator-teeth; and itconsists in the construction of a cultivator-tooth of one piece ofsteel, pressed into shape, and provided with a removable point, and alsowith a land-side flange, which forms the sole of the implement, as willbe understood from the following description.

In the annexed drawings, A designates the wisg of the tooth, A theshare, B the landside, and C the point. These parts, with the exceptionof the point C, are first formed out of r single'piece of steel, asshown in Fig. 1, and then pressed into the shape shown in Fig. 5.

On one edge of the land-side B a flange, a,

is formed, which is bent at right angles to the land-side, so as to formthe sole of the implement. This flange a may be bent inwardly, as shownin Fig. 2, or it may be turned out, as shown in Fig. 3.

Thepoint C is constructed with a thin shank, b, which terminates in anunder-beveled shoulder, 0, that receives the straight portion a of theshare at the point of the implement, and serves, in connection with asingle bolt or rivet, e, to rigidly secure the point C to its place.

I am aware that the mold-board, land-side, and share of aplow haveheretofore been constructed in one piece, and therefore I makeno claimto such invention.

I What I claim as new, and desire to secure by Letters Patent, is-

The cultivator-tooth herein described, composed of the wing ormold-board A and landside B, having the flange or sole a, made of asingle piece of metal, in combination with the point C,.provided withthe beveled shoulder a and rounded seat b, as and for the purpose setforth. I

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

MOSES JOHNSON. Witnesses:

R. R. PEALER, GEORGE NEYcE.

